OP281GP

Instrumentation, Op Amps, Buffer Amps Overview

The OP281GP is a dual-channel, ultralow power operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail output capability and is optimized for low-power applications with a wide operating supply voltage range. Key electrical parameters include a gain-bandwidth product of 105 kHz, a slew rate of 27 mV/us, an input offset voltage of 1.5 mV, and an input bias current of 10 nA. The device operates on supply voltages ranging from 1.35 V to 6 V or 2.7 V to 12 V, with a typical operating supply current of 8 uA per channel. It provides an output current of 12 mA per channel, a common-mode rejection ratio of 65 dB, and an input voltage noise density of 75 nV/sqrt Hz. The component is housed in an SOIC-8 package and functions within a temperature range of -40 C to +85 C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultralow power consumption suitable for battery-powered portable applications
• Rail-to-rail output capability providing increased dynamic range
• High input impedance CMOS architecture

Instrumentation, Op Amps, Buffer Amps Applications

• Portable medical equipment
• Remote sensors
• Transimpedance amplifiers
• Current monitors
• 4 mA to 20 mA loop drivers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'GP' against official Analog Devices documentation to confirm pinout, package dimensions, and thermal characteristics. Ensure compatibility with the intended PCB footprint and soldering profile. Confirm RoHS compliance status through the manufacturer's latest certification records before integration into regulated products.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs requiring minimal quiescent current while maintaining rail-to-rail output swing. It is appropriate for single-supply or dual-supply systems where low power dissipation is critical. Consider the 105 kHz bandwidth and 27 mV/us slew rate for signal conditioning tasks that do not require high-speed performance but benefit from low noise and high input impedance.

Instrumentation, Op Amps, Buffer Amps Part Context

The OP281 belongs to the family of micropower, high input impedance amplifiers designed for wide operating supply voltage ranges. These devices are engineered to drive low-frequency data converters and serve as buffers for sensor front ends. The series supports both wireless and remote sensing applications due to its efficiency and stability over varying supply conditions.

Instrumentation, Op Amps, Buffer Amps FAQ

Is the OP281 unity-gain stable?

Yes, the OP281 is unity-gain stable.

What is the maximum supply voltage for the OP281?

The maximum supply voltage is 6 V for single supply or 12 V depending on the specific configuration and datasheet revision.